A birthday can be a day.Logical formLearned from19 sentences. A (birthday cake) can be belated.Logical formLearned from19 sentences. A birthday may pertain-to a colleague.Logical formLearned from19 sentences. A tattoo can be for a birthday.Logical formLearned from19 sentences. A person may buy a (birthday present).Logical formLearned from19 sentences. A female may celebrate birthdays.Logical formLearned from19 sentences. A (birthday package) may pertain-to a person.Logical formLearned from19 sentences. Bags can be for birthdays.Logical formLearned from19 sentences. A (gift certificate) can be for a birthday.Logical formLearned from19 sentences. Dvds can be for a birthday.Logical formLearned from19 sentences. A birthday can be with family.Logical formLearned from19 sentences. Persons may celebrate a birthday.Logical formLearned from19 sentences. A birthday can be a reason.Logical formLearned from19 sentences. A (birthday game) may pertain-to a person.Logical formLearned from19 sentences. Persons may plan a (birthday party).Logical formLearned from19 sentences.